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LHC1: A semiconductor pixel detector readout chip with internal, tunable delay providing a binary pattern of selected events

  • Erik H.M. Heijne
  • , F. Antinori
  • , D. Barberis
  • , K. H. Becks
  • , H. Beker
  • , W. Beusch
  • , P. Burger
  • , M. Campbell
  • , E. Cantatore
  • , M. G. Catanesi
  • , E. Chesi
  • , G. Darbo
  • , S. D'Auria
  • , C. DaVia'
  • , D. Di Bari
  • , S. Di Liberto
  • , T. Gys
  • , G. Humpston
  • , A. Jacholkowski
  • , J. J. Jæger
  • J. Jakubek, P. Jarron, W. Klempt, F. Krummenacher, K. Knudson, J. Kubasta, J. C. Lassalle, R. Leitner, F. Lemeilleur, V. Lenti, M. Letheren, B. Lisowski, L. Lopez, D. Loukas, M. Luptak, P. Martinengo, G. Meddeler, F. Meddi, P. Middelkamp, M. Morando, P. Morettini, A. Munns, P. Musico, F. Pellegrini, F. Pengg, S. Pospisil, E. Quercigh, J. Ridky, L. Rossi, K. Safarik, L. Scharfetter, G. Segato, S. Simone, K. Smith, W. Snoeys, C. Sobczynski, J. Stastny, V. Vrba
  • CERN
  • University of Genoa
  • University of Wuppertal
  • Canberra Semiconductor NV
  • University of Bari
  • University of Udine
  • University of Glasgow
  • National Institute for Nuclear Physics
  • GEC Marconi
  • Collège de France
  • Group Praha
  • Smart Silicon Systems S.A.
  • TU Dortmund University
  • National Technical University of Athens
  • Slovak Academy of Sciences
  • University of Padua
  • University of Warsaw

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

The Omega3/LHC1 pixel detector readout chip comprises a matrix of 128 × 16 readout cells of 50 μm × 500 μm and peripheral functions with 4 distinct modes of initialization and operation, together more than 800 000 transistors. Each cell contains a complete chain of amplifier, discriminator with adjustable threshold and fast-OR output, a globally adjustable delay with local fine-tuning, coincidence logic and memory. Every cell can be individually addressed for electrical test and masking. First results have been obtained from electrical tests of a chip without detector as well as from source measurements. The electronic noise without detector is ∼ 100 e- rms. The lowest threshold setting is close to 2000 e- and non-uniformity has been measured to be better than 450 e- rms at 5000 e- threshold. A timewalk of < 10 ns and a precision of < 6 ns rms on a delay of 2 μs have been measured. The results may be improved by further optimization.

Original languageEnglish
Pages (from-to)55-63
Number of pages9
JournalNuclear Inst. and Methods in Physics Research, A
Volume383
Issue number1
DOIs
StatePublished - Dec 1 1996

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